Coupling Effect of Structural Lubrication and Thermal Excitation on Phononic Friction

• DOI: 10.1021/acsami.4c01488
• Publication Date: 2024-04-09T18:33:00Z
• Authors: Yun Dong; Futian Yang; Jinguang Wang; Xinyi Tang; Yi Tao; Bo Shi; Yifan Liu
• Keywords: Commensurability (mathematics)

This work investigates the coupling effect of structural lubrication and thermal excitation on phononic friction between black phosphorus (BP) layers. As rotation angle increases from commensurate to incommensurate states, gradually decreases at any temperature. However, role temperature in depends commensurability. For a less than 10°, increasing leads decrease due excitation. Conversely, when exceeds elevated results an increase collision. At critical higher temperatures lead reduced through low speeds, large duration becomes so short that is weakened, instead collision dominates. Further research reveals BP's ability withstand different maximum speeds also determined by Finally, method measure sliding period length rotated tip unrotated substrate potential energy topography proposed simply verified using phonon spectrum.